324 MESSRS. SCLATER AND SALViN [May 28, 



nigricantibus, secundariorum et tectricum majorum marginihus 

 externis hrnnnescentihus : superciliis, striga rictali utrinqxie 

 et gula media albis : gula superiore utrinque et inferiore tota 

 cum pectore medio nigris, ventre medio, hypochondriis et crissi 

 plumarum marginihus nigris : rostro nigricanti-corneo, mandi- 

 hula fiavo not at a : pedihus corylinis : long, tota 6"5, alcB 2'8, 

 caudce 2'5, tarsi 0'7. 

 Hab. Mexico. 

 Mus. P. L. S. 



We describe this well-marked species from a single indifferent 

 skin, which has long remained without a name, in Sclater's col- 

 lection. It was obtained by him some years ago from Mr. Gould, 

 who received it along with a collection of Mexican Humming- 

 birds, 



The species differs in several respects from the members of the 

 genus Zonotrichia as restricted by recent systematists, but we know 

 not where else to place it. The wings are short and much rounded, 

 the third, fourth, and fifth primaries being equal and longest, the 

 second being only slightly shorter. The first primary is O'S.'J shorter 

 than the longest, and longer than is usual in typical Zonotrichia. 

 The tail is short and slightly rounded, and bears no markings on the 

 outer rectrices. We have named it quinquestriata, from the five 

 white lines which originate from the bill. These are two short 

 superciliary stripes, two rictal stripes, and one rather broader stripe 

 in the centre of the black throat. In this respect our bird some- 

 what resembles Z. mystacalis, which, however, is readily distin- 

 guishable by the bright reddish-brown rump and longitudinal stripes 

 on the head and interscapularies. 



3. Pyrgisoma cabanisi. 



Melozone biarcuata, Cab. J. f. O. 18G0, p. 412. 

 Pyrgisoma kieneri, Cassin, Proc. Acad. Pliil. 18G.5, p. 109 ; Law- 

 rence, Ann. L. N. Y. viii. p. 481. 



Supra fuscum, pileo et plumis auricula ribus castaneis : fronte 

 nigra, loris et regione oculari albis : subtus cinereum, mediuliter 

 album, striga titrinque rictali et plaga pectorali media nigris : 

 subalaribus albis : rostro nigro, pedibus corylinis. 



Hab. San Jose, Costa Rica {Hoffmann). 



Mus. Parisiensi, Berolin. et P. L. S. 



Obs. Simile P. biarcuato, sed regione parotica castanea et plaga 

 pectorali nigra facile distinguendum. 



It is unfortunate that all the naturalists who have met with spe- 

 cimens of the present bird should have identified it wrongly. Dr. 

 Cabanis lias referred it to the Pyrgita biarcuata, Prevost, a well- 

 known Guatemalan species of the same genus, from which it is easily 

 distinguishable, as above noted. Messrs. Cassin and Lawrence have 

 supposed it to be Pyrgisoma kieneri of Bonaparte, overlooking the 

 fact that the latter species is characterized as being, in comparison 

 with P. biarcuatum, " valde majus et rostro robusfiore," whereas 



